... added, and the reaction mixture was stirred at room temperature for 4 h. The organic phase was ... 8 Hz, 1 H), 6.76 (d, J = 10 Hz, 1 H), 6.99 (d, J = 10 Hz, 1 ... Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A IS6 Received November 5, 1979 ...